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| Contact |
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Decaix Jean |
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| Title |
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RANS Computations of tip Vortex Cavitation |
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Decaix J., Balarac G., Dreyer M., Farhat M., Münch C. |
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| References |
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Proc. of 9th International Symposium on Cavitation, Lausanne, Switzerland, December 6-10, 2015 |
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http://iopscience.iop.org/article/10.1088/1742-6596/656/1/012183/meta;jsessionid=D67160E5310552B260F372078447D83F.c1 |
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| Abstract |
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The present study is related to the development of the tip vortex cavitation in Kaplan turbines. The investigation is carried out on a simplified test case consisting of a NACA0009 blade with a gap between the blade tip and the side wall. Computations with and without cavitation are performed using a R ANS modelling and a transport equation for the liquid volume fraction. Compared with experimental data, the R ANS computations turn out to be able to capture accurately the development of the tip vortex. The simulations have also highlighted the influence of cavitation on the tip vortex trajectory. |
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